This was formed by distorting an image of a background on Pixabay.
Source Firkin
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Colorful Floral Background 3 No Black
Source GDJ
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.
Source Lazur URH
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
Embossed lines and squares with subtle highlights.
Source Alex Parker
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo